DE68917355T2 - Verfahren zum Spritzgiessen eines Kunststoffsubstrats für eine optische Platte. - Google Patents
Verfahren zum Spritzgiessen eines Kunststoffsubstrats für eine optische Platte.Info
- Publication number
- DE68917355T2 DE68917355T2 DE68917355T DE68917355T DE68917355T2 DE 68917355 T2 DE68917355 T2 DE 68917355T2 DE 68917355 T DE68917355 T DE 68917355T DE 68917355 T DE68917355 T DE 68917355T DE 68917355 T2 DE68917355 T2 DE 68917355T2
- Authority
- DE
- Germany
- Prior art keywords
- mold cavity
- mold
- resin
- plastic substrate
- axial dimension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000758 substrate Substances 0.000 title claims description 39
- 229920003023 plastic Polymers 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 15
- 238000001746 injection moulding Methods 0.000 title claims description 13
- 230000003287 optical effect Effects 0.000 title claims description 7
- 239000004033 plastic Substances 0.000 title description 13
- 230000008569 process Effects 0.000 title description 2
- 229920005989 resin Polymers 0.000 claims description 41
- 239000011347 resin Substances 0.000 claims description 41
- 238000000465 moulding Methods 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 230000006872 improvement Effects 0.000 description 5
- 239000002991 molded plastic Substances 0.000 description 5
- 229920005668 polycarbonate resin Polymers 0.000 description 5
- 239000004431 polycarbonate resin Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 2
- IEEZXCFWEVKMQT-UHFFFAOYSA-N 4-(1-phenylpropyl)phenol Chemical compound C=1C=C(O)C=CC=1C(CC)C1=CC=CC=C1 IEEZXCFWEVKMQT-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63094782A JPH078514B2 (ja) | 1988-04-18 | 1988-04-18 | 光ディスク用プラスチック基板の射出成形法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE68917355D1 DE68917355D1 (de) | 1994-09-15 |
| DE68917355T2 true DE68917355T2 (de) | 1995-05-18 |
Family
ID=14119657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE68917355T Expired - Fee Related DE68917355T2 (de) | 1988-04-18 | 1989-04-18 | Verfahren zum Spritzgiessen eines Kunststoffsubstrats für eine optische Platte. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5002706A (ja) |
| EP (1) | EP0338913B1 (ja) |
| JP (1) | JPH078514B2 (ja) |
| DE (1) | DE68917355T2 (ja) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6517755B1 (en) * | 1919-07-18 | 2003-02-11 | Ube Industries, Ltd. | Resin multilayer molding method and mulitlayer molding device |
| JP2906349B2 (ja) * | 1989-11-01 | 1999-06-21 | 住友重機械工業株式会社 | 光ディスク基板の製造方法 |
| US5800759A (en) * | 1992-12-27 | 1998-09-01 | Nissha Printing Co., Ltd. | Insert molded article, and apparatus and method for producing the insert molded article |
| JPH06243523A (ja) * | 1993-02-16 | 1994-09-02 | Canon Inc | 光磁気ディスクおよび光磁気ディスクシステム |
| JP2597529B2 (ja) * | 1993-08-20 | 1997-04-09 | 日精樹脂工業株式会社 | 射出成形方法 |
| JP3343628B2 (ja) * | 1993-08-27 | 2002-11-11 | 日本ジーイープラスチックス株式会社 | 薄肉成形方法 |
| JP2787651B2 (ja) * | 1994-03-22 | 1998-08-20 | 日精樹脂工業株式会社 | 射出成形機の成形方法 |
| US5683630A (en) * | 1994-06-20 | 1997-11-04 | Matsushita Electric Industrial Co., Ltd. | Process for making optical disk substrates |
| US5547619A (en) * | 1994-09-30 | 1996-08-20 | The Japan Steel Works, Ltd. | Toggle type injection molding process |
| JP3519511B2 (ja) * | 1995-07-27 | 2004-04-19 | ファナック株式会社 | 射出成形機の制御方法および装置 |
| JPH09123203A (ja) * | 1995-11-01 | 1997-05-13 | Meiki Co Ltd | ディスク基板の成形方法およびその装置 |
| GB9601289D0 (en) * | 1996-01-23 | 1996-03-27 | Nimbus Manufacturing Uk Limite | Manufacture of optical data storage disc |
| US6413461B1 (en) * | 1998-05-08 | 2002-07-02 | Sumitomo Chemical Company, Limited | Process for producing multilayer molded article |
| WO2000048172A2 (en) | 1999-02-12 | 2000-08-17 | General Electric Company | Data storage media |
| US7179551B2 (en) | 1999-02-12 | 2007-02-20 | General Electric Company | Poly(arylene ether) data storage media |
| NL1015140C2 (nl) * | 2000-05-09 | 2001-11-13 | Otb Group Bv | Werkwijze en inrichting voor het spuitgieten van een kunststof voorwerp. |
| WO2002085537A2 (en) * | 2001-04-19 | 2002-10-31 | General Electric Company | Spin coating process |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028947C2 (de) * | 1980-07-30 | 1983-11-17 | Polygram Gmbh, 2000 Hamburg | Verfahren zur Herstellung plattenförmiger, optisch auslesbarer Informationsträger hoher Speicherdichte |
| JPS58193121A (ja) * | 1982-05-07 | 1983-11-10 | Matsushita Electric Ind Co Ltd | 円盤状記録媒体成形方法 |
| JPS6195919A (ja) * | 1984-10-18 | 1986-05-14 | Sony Corp | 射出成形機 |
| JPS61177222A (ja) * | 1985-02-04 | 1986-08-08 | Meiki Co Ltd | 射出成形機による薄肉レンズの成形方法 |
| JPS61199919A (ja) * | 1985-02-28 | 1986-09-04 | Hishiya Seiko Kk | 射出成形機の射出工程制御方法 |
| JPS61205112A (ja) * | 1985-03-08 | 1986-09-11 | Idemitsu Petrochem Co Ltd | 射出圧縮成形方法 |
| JPS629926A (ja) * | 1985-07-09 | 1987-01-17 | Hitachi Ltd | 光デイスク基板成形方法 |
| JPS62204451A (ja) * | 1986-03-03 | 1987-09-09 | Daicel Chem Ind Ltd | 光デイスク用プラスチツク基板とその製法 |
| JPH07121544B2 (ja) * | 1986-07-31 | 1995-12-25 | キヤノン株式会社 | 光デイスク基板の製造法 |
| JPH0675888B2 (ja) * | 1986-11-28 | 1994-09-28 | ソニー株式会社 | デイスクの射出成形方法 |
-
1988
- 1988-04-18 JP JP63094782A patent/JPH078514B2/ja not_active Expired - Lifetime
-
1989
- 1989-04-18 EP EP89401064A patent/EP0338913B1/en not_active Expired - Lifetime
- 1989-04-18 DE DE68917355T patent/DE68917355T2/de not_active Expired - Fee Related
- 1989-04-18 US US07/339,777 patent/US5002706A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01264817A (ja) | 1989-10-23 |
| EP0338913A3 (en) | 1990-06-13 |
| DE68917355D1 (de) | 1994-09-15 |
| JPH078514B2 (ja) | 1995-02-01 |
| US5002706A (en) | 1991-03-26 |
| EP0338913B1 (en) | 1994-08-10 |
| EP0338913A2 (en) | 1989-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |